Atom loader Animation | HTML, CSS & JavaScript

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  height: 100vh;
  background: radial-gradient(circle at center, #020617, #000000);
  display: flex;
  justify-content: center;
  align-items: center;
  color: #00ffff;
}

/* Container */
.container {
  text-align: center;
}

/* Atom */
.atom {
  position: relative;
  width: 200px;
  height: 200px;
  perspective: 1000px;
  margin: auto;
}

/* Nucleus */
.nucleus {
  position: absolute;
  width: 14px;
  height: 14px;
  background: #00ffff;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 15px #00ffff, 0 0 35px #00ffff;
}

/* Orbit base */
.orbit {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 3px solid rgba(0,255,255,0.3);
  border-radius: 50%;
}

/* Spin layer */
.spin {
  width: 100%;
  height: 100%;
  position: relative;
  animation: spin 2.5s linear infinite;
}

/* Electron */
.spin::after {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  width: 10px;
  height: 10px;
  background: #00ffff;
  border-radius: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 10px #00ffff, 0 0 20px #00ffff;
}

/* Orbit angles */
.orbit1 { transform: rotateX(65deg); }
.orbit2 { transform: rotateY(65deg); }
.orbit3 { transform: rotateZ(0deg); }

/* Animation */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

- Atom loader Animation

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